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首页> 外文期刊>Arabian Journal for Science and Engineering >DRAINAGE GEOCHEMISTRY AROUND THE ABANDONED WHITTLE COLLIERY, NORTHUMBERLAND, UK
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DRAINAGE GEOCHEMISTRY AROUND THE ABANDONED WHITTLE COLLIERY, NORTHUMBERLAND, UK

机译：英国诺森伯兰郡废弃的白钨矿山周围的排水地球化学

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An investigation was conducted on the drainage geochemistry and mineralogy of stream sediments in the area of the Fe-Mn passive treatment system in Whittle Colliery, UK. The major and trace element concentrations were analyzed in the surface waters as well as in the different fractions ( < 75; < 106; < 150; < 180 μm) of the riverbed sediments and plants (algae and moss). The system comprises a series of 2 lagoons and 3 reed bed wetlands that contaminate the groundwater that is pumped to the surface in order to prevent uncontrolled surface mine water discharge that would occur after mine water rebound without the proper management intervention. It was observed that the passive treatment system is most effective at decreasing Fe, Al, and Mn concentrations in groundwater, although a significant contamination of surface waters is still observed in places. The results of the present study show that the adsorption processes and mixing between the tributaries and seepage of mine waters (wetland Ⅱ) alter the mineralogical composition of the riverbed sediments and surface water compositions around the passive treatment system. Therefore, given the higher concentrations of the biota downstream of the treatment discharge relative to the control locations show some plants' uptake/biosorption. High bicarbonate and carbonate contents, high buffering capacity, and the greater protection of aquatic life in the receiving stream, the SO_4 concentrations were found to be above the EQS values (Environmental Quality Standards) at most of the sample locations. Calcium ions were lost by ion exchange to create calcium sulfate water as carbonate facies water interacted with pyrite. For that reason, special caution has to be taken in order to remove these contaminant anions.
机译：对英国惠特尔煤矿的铁锰被动处理系统区域的河流沉积物的排水地球化学和矿物学进行了调查。在地表水以及河床沉积物和植物（藻类和苔藓）的不同部分（<75； <106； <150； <180μm）中分析了主要元素和痕量元素的浓度。该系统包括一系列的2个泻湖和3个芦苇床湿地，这些湿地污染了被泵送到地表的地下水，以防止在矿井水回弹后，如果没有适当的管理干预，就会发生不受控制的地表水排放。据观察，尽管在某些地方仍然观察到明显的地表水污染，但是被动处理系统在降低地下水中的Fe，Al和Mn浓度方面最有效。研究结果表明，支流之间的吸附过程和混合以及矿井水（湿地Ⅱ）的渗漏改变了被动处理系统周围河床沉积物的矿物学组成和地表水组成。因此，鉴于处理排放物下游的生物区系相对于对照位置的浓度更高，表明某些植物的吸收/生物吸收。高碳酸氢盐和碳酸盐含量，高缓冲能力以及对接收流中水生生物的更大保护，发现大多数样品位置的SO_4浓度均高于EQS值（环境质量标准）。钙离子通过离子交换而损失，从而生成硫酸钙水，因为碳酸盐相水与黄铁矿相互作用。因此，必须特别小心以除去这些污染性阴离子。

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